/* 
  TeknoDia Teknik - Yapım Aşamasında (Coming Soon) Design System
  Color Palette: Dark Slate/Obsidian (#0B0F17), Crimson Accent (#E53935), Tech Neon (#FF2E4D)
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --bg-dark: #0B0F17;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(26, 36, 61, 0.85);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(229, 57, 53, 0.4);
  
  --primary-red: #E53935;
  --primary-gradient: linear-gradient(135deg, #FF334B 0%, #C62828 100%);
  --red-glow: rgba(229, 57, 53, 0.35);
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-sub: #CBD5E1;
  
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  
  --transition-fast: 0.25s ease;
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  position: relative;
  line-height: 1.6;
}

/* Background Animated Canvas & Gradients */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
}

.bg-ambient-light {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(229, 57, 53, 0.12) 0%, rgba(11, 15, 23, 0) 70%);
  top: -150px;
  right: -150px;
  z-index: -1;
  pointer-events: none;
}

.bg-ambient-light-bottom {
  position: fixed;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 40, 40, 0.08) 0%, rgba(11, 15, 23, 0) 70%);
  bottom: -200px;
  left: -200px;
  z-index: -1;
  pointer-events: none;
}

/* Layout Utilities */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  padding: 24px 0;
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(11, 15, 23, 0.7);
}

.header-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(229, 57, 53, 0.25));
  transition: transform var(--transition-fast);
}

.logo-img:hover {
  transform: scale(1.03);
}

.btn-text-mobile {
  display: none;
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 50px;
  background: rgba(229, 57, 53, 0.1);
  border: 1px solid rgba(229, 57, 53, 0.25);
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 500;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary-red);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary-red);
  animation: pulseGlow 1.8s infinite;
}

@keyframes pulseGlow {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(229, 57, 53, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(229, 57, 53, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(229, 57, 53, 0); }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  font-family: var(--font-family);
  cursor: pointer;
  border: none;
  transition: all var(--transition-smooth);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #FFFFFF;
  box-shadow: 0 10px 25px -5px var(--red-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(229, 57, 53, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 70px 0 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #FF5252;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-title .gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 540px;
}

/* Countdown Timer */
.timer-container {
  margin-bottom: 36px;
}

.timer-label {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-sub);
  margin-bottom: 14px;
  font-weight: 600;
}

.timer-grid {
  display: flex;
  gap: 16px;
}

.timer-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  min-width: 90px;
  text-align: center;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.timer-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-gradient);
}

.timer-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.timer-unit {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 6px;
  font-weight: 600;
}

/* Subscribe Form */
.subscribe-form {
  display: flex;
  gap: 12px;
  max-width: 520px;
  background: rgba(15, 23, 42, 0.9);
  padding: 8px;
  border-radius: 16px;
  border: 1px solid var(--border-card);
  box-shadow: 0 12px 30px rgba(0,0,0,0.4);
}

.subscribe-input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 12px 18px;
  color: var(--text-main);
  font-size: 1rem;
  font-family: var(--font-family);
  outline: none;
}

.subscribe-input::placeholder {
  color: #64748B;
}

/* Hero Media Card */
.hero-media {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  background: #000000;
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-image-card:hover .hero-image {
  transform: scale(1.03);
}

.hero-media-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(11, 15, 23, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 24px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 16px;
}

.badge-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(229, 57, 53, 0.15);
  color: var(--primary-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.badge-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
}

.badge-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Section Common */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 56px;
}

.section-subtitle {
  color: #FF5252;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
  display: block;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Category Grid */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
}

.category-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-accent);
  box-shadow: 0 20px 40px -10px rgba(229, 57, 53, 0.2);
  background: var(--bg-card-hover);
}

.category-thumb {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.category-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.category-card:hover .category-thumb img {
  transform: scale(1.08);
}

.category-icon-overlay {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(11, 15, 23, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FF5252;
  font-size: 1.2rem;
}

.category-content {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.category-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;

}

.category-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.5;
}

.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.tag {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-sub);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(229, 57, 53, 0.3);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.feature-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(229, 57, 53, 0.2) 0%, rgba(198, 40, 40, 0.05) 100%);
  border: 1px solid rgba(229, 57, 53, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary-red);
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Contact / B2B Section */
.b2b-cta-box {
  background: linear-gradient(135deg, rgba(26, 36, 61, 0.8) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(229, 57, 53, 0.3);
  border-radius: 28px;
  padding: 60px 48px;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.b2b-cta-box::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(229, 57, 53, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.b2b-content h3 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.b2b-content p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 28px;
  max-width: 540px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-sub);
  font-size: 1rem;
}

.contact-item i {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-red);
}

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: #FFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
  z-index: 999;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 35px rgba(37, 211, 102, 0.6);
}

.whatsapp-ripple {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: waPulse 2s infinite;
}

@keyframes waPulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: #0F172A;
  border: 1px solid rgba(229, 57, 53, 0.3);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 480px;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  box-shadow: 0 25px 50px rgba(0,0,0,0.8);
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-header h3 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.modal-header p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  color: var(--text-sub);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-input:focus {
  border-color: var(--primary-red);
}

/* Toast Message */
.toast-msg {
  position: fixed;
  top: 24px;
  right: 24px;
  background: #1E293B;
  border-left: 4px solid var(--primary-red);
  color: var(--text-main);
  padding: 16px 24px;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translateX(150%);
  transition: transform 0.4s ease;
}

.toast-msg.show {
  transform: translateX(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .header {
    padding: 18px 0;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-description, .subscribe-form {
    margin-left: auto;
    margin-right: auto;
  }
  .timer-grid {
    justify-content: center;
  }
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .b2b-cta-box {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 40px 24px;
  }
  .contact-info-list {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 14px 0;
  }
  .header-nav {
    gap: 12px;
  }
  .logo-img {
    height: 40px;
    max-width: 190px;
  }
  .header-b2b-btn {
    padding: 10px 16px;
    font-size: 0.9rem;
    white-space: nowrap;
    border-radius: 10px;
  }
}

@media (max-width: 640px) {
  .header {
    padding: 12px 0;
  }
  .logo-img {
    height: 34px;
    max-width: 160px;
  }
  .header-b2b-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
    border-radius: 8px;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .categories-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .timer-box {
    min-width: 70px;
    padding: 12px 14px;
  }
  .timer-value {
    font-size: 1.7rem;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .footer-content {
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .header {
    padding: 10px 0;
  }
  .header-nav {
    gap: 8px;
  }
  .logo-img {
    height: 30px;
    max-width: 140px;
  }
  .header-b2b-btn {
    padding: 7px 11px;
    font-size: 0.8rem;
    gap: 5px;
    white-space: nowrap;
    border-radius: 8px;
  }
  .btn-text-desktop {
    display: none;
  }
  .btn-text-mobile {
    display: inline;
  }
  .hero-title {
    font-size: 1.95rem;
  }
  .hero-tag {
    font-size: 0.75rem;
  }
}